Marble countertops are beautiful and add significant value to any kitchen or bathroom — but they're also among the most high-maintenance natural stone surfaces you can have. Marble is porous and acid-sensitive, which means common household cleaners, citrus juice, coffee, and wine can etch and stain the surface if you're not careful. This guide covers how to clean marble correctly, what to avoid, and how to protect the surface long-term.
What You'll Need
- pH-neutral dish soap or stone-safe cleaner
- Warm water
- Soft microfibre cloths
- Marble poultice (for deep stains, optional)
- Marble sealer
What NOT to Use on Marble
This is the most important section. The following will etch, dull, or damage marble — even a single application:
- Vinegar or any acid-based cleaners
- Bleach or hydrogen peroxide
- Baking soda (too abrasive for polished marble)
- All-purpose sprays that aren't pH-neutral
- Lemon juice, orange juice, or any citrus
- Abrasive sponges or scrubbers
Step 1: Daily Cleaning
For daily maintenance, wipe marble countertops with a damp, soft microfibre cloth and a small amount of pH-neutral dish soap. Rinse with clean water and dry immediately — don't let water pool on the surface, as mineral deposits can build up over time. Buff with a dry cloth to prevent water spots.
Step 2: Tackling Fresh Spills
Blot spills immediately — don't wipe, as wiping spreads the liquid into the pores. Use a clean cloth to absorb as much liquid as possible, then clean with a damp cloth and mild soap. The faster you act, the less likely a stain will set. Acids (wine, coffee, citrus) don't just stain — they chemically etch the surface, leaving dull spots that require professional polishing to remove.
Step 3: Deep Cleaning Stains
For oil-based stains (butter, cosmetics), mix a few drops of dish soap with water and apply with a soft cloth. For organic stains (coffee, tea, wine), a small amount of hydrogen peroxide can be used carefully and sparingly on white marble — test in a hidden area first. For stains that have penetrated the stone, a marble poultice (available at hardware stores) draws out the stain by drawing moisture back through the surface over 24–48 hours.
Step 4: Dealing with Etching
Etching appears as dull, lighter patches where acid has reacted with the calcium carbonate in marble. Light etching on honed (matte) marble can sometimes be buffed out with a marble polishing powder and a soft cloth. Deep etching on polished marble typically requires professional re-polishing. The best solution is prevention: use trivets, coasters, and cutting boards religiously on marble surfaces.
Step 5: Seal Regularly
Marble should be sealed with a penetrating stone sealer at least once a year — more often in high-use kitchen areas. Sealing doesn't prevent etching (that's a chemical reaction on the surface), but it does fill the pores and dramatically reduces staining. Apply sealer with a clean cloth, let it sit for the recommended dwell time, then wipe off any excess. Buff with a dry cloth and let cure overnight before using the surface.
Professional Cleaning Services in Toronto
Maidless cleaners use stone-safe products on marble, granite, and natural stone surfaces across Toronto. Book your clean at maidless.ca.